摘要:
A lamp has a light emitting element within a sealed transparent vessel. The vessel comprises a cylindrical section with a longitudinal axis L in parallel to a longitudinal axis F of the light emitting element. In order to provide a lamp suited for compact reflectors, a heat shielding element is arranged to shield at least infrared light. The heat shielding element is arranged in parallel to the longitudinal axis F of the light emitting element and has an axial extension of at least 80% of the light emitting element. The heat shielding element is arranged to shield infrared light emitted into directions perpendicular to the longitudinal axis F covering a circumferential extension of 20°-120° measured in cross section.
摘要:
The invention relates to a device for UV-irradiation of a flowing medium, particularly for disinfecting water, comprising a gas discharge lamp (20) that has a lamp tube (22) and emits UV radiation and longwave light, and a guide tube (18) which guides the flowing medium and separates it from said lamp tube (22). According to the invention, the guide tube (18) and/or the lamp tube (22) is coated on the outer face with an interference filter (28) that lets UV radiation in a first wavelength range through but not light in a second wavelength range.
摘要:
The object of the present invention is to provide an ultraviolet light source, which has a simple configuration, is inexpensive, and has excellent luminous efficiency. A gas discharge light-emitting device comprising a glass tube filled with a discharge gas, and at least a pair of electrodes provided on an outer wall surface of the glass tube through an insulating layer so as to extend along a longitudinal direction of the glass tube to be away from each other. An ultraviolet phosphor layer is formed on an inner surface of the glass tube on the bottom part, whereby a high-efficient ultraviolet light-emitting can be obtained. Also, a flat light source for ultraviolet light emission can be obtained by arraying multiple ultraviolet light-emitting tubes parallel to one another.
摘要:
Bekannte Vorrichtungen zur Bestrahlung eines Substrats 101 mit ultravioletter oder infraroter Strahlung weisen ein Gehäuse auf, in dem eine Bestrahlungslampe mit einem Lampenrohr, und ein Reflektor angeordnet sind. Bei diesen Vorrichtungen legt das Lampenrohr eine Lampenrohr-Längsachse fest, und der Reflektor erstreckt sich in einer Richtung der Lampenrohr-Längsachse. Um hiervon ausgehend eine Bestrahlungsvorrichtung anzugeben, die einfach zu warten ist und eine hohe Lebensdauer aufweist, wird erfindungsgemäß vorgeschlagen, dass der Reflektor 451 auf das Lampenrohr oder ein dieses umgebendes Hüllrohr 450 aufgebracht ist, und dass die Bestrahlungslampe oder das Hüllrohr in dem Gehäuse 103 derart gehaltert ist, dass sie/es um die Lampenrohr-Längsachse relativ zu dem Gehäuse drehbar ist.
摘要:
Fluorescent lamps, along with their methods of manufacture and use, are provided. The fluorescent lamp 10 can include a discharge tube 12 extending from a first end 14 to a second end 16; a resistive transparent coating 30 (e.g., a tin oxide thin film layer, such as a fluor-doped tin oxide thin film layer) on the outer surface 20 of the discharge tube 12; and a pair of electric terminals 21, 22 positioned on the discharge tube 12 such that a first terminal 21 is on the first end 14 and a second terminal 22 is on the second end 16.
摘要:
The inner surfaces of fluorescent lamp tubing are provided with a phosphor coating. The phosphor coating defines an inward-facing surface. A protective coating is deposited on the inward-facing surface of the phosphor coating. The protective coating defines an innermost surface and makes effective recombination of Hg ions possible on the innermost surface of the second coating before the Hg ions collide with the phosphor particles in the phosphor coating.
摘要:
A discharge lamp and a headlamp with a discharge lamp are described. The discharge lamp10 includes a discharge vessel16 with electrodes 20 for generating an electrical arc. The discharge vessel includes a filling with a rare gas and metal halides. In order to avoid inhomogeneities from scattering at a salt pool 22 within the discharge vessel, the lamp further comprises a diffusing portion 24 arranged such that at least a portion of light emitted below a horizontal is diffused, and that light emitted above the horizontal is not diffused. A headlamp comprises a reflector 32 with an upper reflector portion 36 reflecting light emitted above a horizontal and a lower reflector portion 38 reflecting light emitted below. The diffusing portion 24 is arranged such that at least a portion of light reflected at the lower reflector portion 38 is diffused, and that light reflected at the upper reflector portion 36 is not diffused.
摘要:
Fluorescent lamps, along with their methods of manufacture and use, are provided. The fluorescent lamp 10 can include a discharge tube 12 extending from a first end 14 to a second end 16; a resistive transparent coating 30 (e.g., a tin oxide thin film layer, such as a fluor-doped tin oxide thin film layer) on the outer surface 20 of the discharge tube 12; and a pair of electric terminals 21, 22 positioned on the discharge tube 12 such that a first terminal 21 is on the first end 14 and a second terminal 22 is on the second end 16.